# Simple Total Calculator vs Stopwatch Library

The clearest difference is in-app purchases: Simple Total Calculator at none against Stopwatch Library's 1. Simple Total Calculator also leads on iOS requirement (15.8.3 vs 17.0). Stopwatch Library's advantage is ads (none vs shown) and update cadence (every 3 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. Stopwatch Library sells 1 one-off in-app purchase. Simple Total Calculator asks for nothing beyond the download.

Simple Total Calculator ships an update fortnightly, Stopwatch Library every 3 days. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Simple Total Calculator | Stopwatch Library |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 36 MB | 5 MB |
| Requires iOS | **15.8.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Naoyuki Hasegawa](https://appshunter.io/developer/6777422704) |

## What reviewers say

### Simple Total Calculator

[App page](https://appshunter.io/ios/app/simple-total-calculator/id6739667943)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stopwatch Library

[App page](https://appshunter.io/ios/app/stopwatch-library/id6794338987)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を削除 | $2.99 | one-time |


## Frequently asked questions

### Is Simple Total Calculator free?

Simple Total Calculator is free to download, with no in-app purchases.

### Is Stopwatch Library free?

Stopwatch Library is free to download, with in-app purchases available.

### Do Simple Total Calculator or Stopwatch Library have ads?

Simple Total Calculator shows ads; Stopwatch Library does not.

### Which is updated more often, Simple Total Calculator or Stopwatch Library?

Simple Total Calculator ships an update fortnightly, and Stopwatch Library every 3 days. Most recently, Simple Total Calculator was updated on October 11, 2026 and Stopwatch Library on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*